CN117554177A - BFRP constraint gangue concrete support structure testing device - Google Patents

BFRP constraint gangue concrete support structure testing device Download PDF

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Publication number
CN117554177A
CN117554177A CN202311516688.4A CN202311516688A CN117554177A CN 117554177 A CN117554177 A CN 117554177A CN 202311516688 A CN202311516688 A CN 202311516688A CN 117554177 A CN117554177 A CN 117554177A
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CN
China
Prior art keywords
ring
fixedly connected
bfrp
test
concrete
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Pending
Application number
CN202311516688.4A
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Chinese (zh)
Inventor
王翔
倪航
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Tongcheng Jiacheng Concrete Co ltd
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Tongcheng Jiacheng Concrete Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN202311516688.4A priority Critical patent/CN117554177A/en
Publication of CN117554177A publication Critical patent/CN117554177A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02—Details
    • G01N3/04—Chucks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0003—Steady
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0017—Tensile
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/003—Generation of the force
    • G01N2203/005—Electromagnetic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/06—Indicating or recording means; Sensing means
    • G01N2203/067—Parameter measured for estimating the property
    • G01N2203/0676—Force, weight, load, energy, speed or acceleration

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention discloses a BFRP (bidirectional fiber reinforced polymer) constrained gangue concrete supporting structure testing device, which relates to the technical field of concrete, and can directly measure the strength of a concrete supporting structure through a pressure testing machine in the field of concrete reinforcement, but the strength of the concrete supporting structure cannot be reflected by the whole because the direction and the position of a testing force are limited by only one-time pressure test when a detection table is placed in the detection, the supporting plate can play a supporting role after the measurement is limited, and after one-time extrusion test, a test table is driven to rotate through a driving motor, the contact position of the concrete structure and a pressure rod is adjusted after the rotation, and then the concrete supporting structure is extruded through the pressure rod, so that the comprehensive test is realized, and the test result is improved.

Description

BFRP constraint gangue concrete support structure testing device
Technical Field
The invention relates to the technical field of concrete, in particular to a BFRP (bidirectional fiber reinforced plastics) constrained gangue concrete supporting structure testing device.
Background
BFRP is a high performance fibrous material composed of carbon fibers and a polymer resin. The reinforced concrete has the advantages of light weight, high strength, corrosion resistance and the like, and is widely applied to the fields of structural reinforcement and concrete reinforcement. The coal gangue is waste generated in the coal mining and treatment process, and usually contains a large amount of ash, sulfur and other harmful substances, and the mechanical property of the coal gangue can be obviously improved by introducing BFRP into the coal gangue concrete, so that the cracking resistance and durability of the coal gangue concrete can be enhanced, and the cracking and damage of the concrete can be delayed.
For this, chinese application number: CN112161869a discloses a concrete structural strength testing device, which comprises a shell, wherein the inner side wall of the shell is fixedly connected with a motor, the output shaft of the motor is fixedly connected with a first connecting rod, one end of the first connecting rod, which is far away from the motor, is fixedly connected with a rotating rod, one end of the rotating rod, which is far away from the motor, is rotationally connected with the inner side wall of the shell, the outer side wall of the rotating rod is symmetrically and fixedly connected with two second bevel gears, the outer side wall of the second bevel gear is in meshed connection with a first bevel gear, and the inner ring of the first bevel gear is fixedly connected with a screw; when using this device, make the screw rod rotate through the cooperation between first bevel gear and the second bevel gear for the screw rod drives the second plate body and descends, and the second block extrudees the concrete piece that puts into the inside of U-shaped block, thereby accomplishes the test to the concrete piece, uses this device, need not many manpowers and can operate, and the test is simple, and data is accurate, and application scope is wide.
In the field of concrete reinforcement, the concrete structure is prepared by restraining coal gangue through BFRP, in the application of the concrete, the concrete needs to be detected, the detection mode is usually that a supporting structure is poured, the mechanical property of the concrete is directly reacted through the supporting structure, when the mechanical test of the supporting structure is carried out, the strength of the concrete supporting structure can be directly measured through a pressure testing machine, but the pressure test which can only be carried out once is carried out once when the detecting platform is put in the detection, the direction and the position of the testing force are limited, and therefore the strength of the concrete supporting structure cannot be integrally reacted, and the measuring limitation exists.
Aiming at the problems, a BFRP constrained gangue concrete support structure testing device is provided.
Disclosure of Invention
The invention aims to provide a BFRP constrained gangue concrete support structure testing device, which solves the problem of limited testing range in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the BFRP constrained gangue concrete support structure testing device comprises a testing machine body, wherein a testing bin is arranged on one side of the testing machine body;
the bottom fixedly connected with drive assembly of test storehouse, drive assembly includes the fixed plate, the upper surface mounting of fixed plate has driving motor, driving motor's output fixedly connected with testboard, the spacing groove has all been seted up to testboard's upper surface and lower surface, the last table fixedly connected with spacing subassembly of fixed plate, spacing subassembly includes the gag lever post, the upper surface fixedly connected with gag lever post of fixed plate, the surface fixedly connected with spacing clamp of gag lever post, the setting of spacing clamp is in the both sides of testboard, the inner wall connection of spacing clamp has the spacing post, the spacing post embedding is in the inside of spacing groove, the top of gag lever post is provided with the apron, fixing nut has still been cup jointed on the top of gag lever post, fixing nut pressfitting is at the upper surface of apron, the middle-end fixedly connected with linking post of gag lever post, the end embedding of linking post is in the inside of test storehouse.
Preferably, the top end of the limiting rod is further provided with another set of limiting clamps, wherein one set of limiting clamps are used for limiting the position of the test bench, the other set of limiting clamps are used for limiting the position of the cover plate, and the cover plate is in sliding connection with the limiting rod through the limiting clamps.
Preferably, the through hole is formed in the cover plate, and the cover plate and the test bench are matched to clamp and fix the concrete supporting structure, so that the position of the concrete supporting structure is limited.
Preferably, the upper surface of fixed plate is provided with the transform subassembly, the transform subassembly includes servo motor, the upper surface fixedly connected with servo motor of fixed plate, drive gear is installed to servo motor's both sides, the top fixedly connected with intensity ring frame of fixed plate.
Preferably, the intensity ring frame worker is provided with two sets of, and every group is the mutual annular structure of size, be provided with the enhancement transmission ring on the inner wall of intensity ring frame, one side fixedly connected with drive ring gear of enhancement transmission ring, the fixed surface of enhancement transmission ring is connected with links up the cover, the top fixedly connected with mounting bracket of linking the cover.
Preferably, the linking sleeve is sleeved on the outer surface of the strength ring frame and is in sliding connection with the outer surface of the strength ring frame, and the driving gear rotates to drive the driving gear ring to rotate, and meanwhile, the reinforcing driving ring is driven to rotate.
Preferably, the top fixedly connected with pressure pole of mounting bracket, pressure pole carries out the pressure test to concrete supporting device through the through-hole of apron upper end.
Preferably, the driving gear ring is arranged in a circular ring shape, the outer wall of the driving gear ring is provided with a latch meshed with the driving gear, and the driving gear ring is arranged on the outer side of the driving gear ring.
Preferably, the strength ring frame, the driving gear ring and the reinforcing driving ring are concentric circles, and the driving gear ring and the reinforcing driving ring rotate along the circle center.
Preferably, the top fixedly connected with backup pad of fixed plate, the backup pad is the curved metal construction of inner wall, the backup pad sets up in one side of testboard and apron.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the BFRP restrained gangue concrete supporting structure testing device, when the pressure rod falls through the through hole of the cover plate, the clamped concrete structure is pressed, stability of the concrete structure is limited under clamping, the supporting plate can play a supporting role, after one extrusion test is carried out, the test table is driven by the driving motor to rotate, the contact position of the concrete structure and the pressure rod is adjusted after the rotation, and then the pressure rod is continuously used for extrusion, so that comprehensive test is achieved, and the test result is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the test cartridge and pressure bar of the present invention;
FIG. 3 is a schematic view of the structure of the fixing plate and the driving motor of the present invention;
FIG. 4 is a schematic view of the structure of the stop lever and cover plate of the present invention;
FIG. 5 is a schematic view of the structure of the strength ring carrier and the drive ring gear of the present invention;
FIG. 6 is a schematic view of the structure of the spacing post and spacing groove of the present invention;
fig. 7 is a schematic view of the construction of the adapter sleeve and the stiffening drive ring of the present invention.
In the figure: 11. a test body; 12. a test bin; 13. a pressure rod; 2. a drive assembly; 21. a fixing plate; 22. a driving motor; 23. a test bench; 24. a limit groove; 25. a limit column; 3. a limit component; 31. a limit rod; 32. a limiting clamp; 33. a cover plate; 34. a fixed screw cap; 35. a connecting column; 4. a transformation component; 41. a strength ring frame; 42. driving the toothed ring; 43. reinforcing the drive ring; 44. a servo motor; 45. a drive gear; 46. a mounting frame; 47. a connecting sleeve; 5. and a support plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
For a further understanding of the present invention, the present invention will be described in detail with reference to the drawings.
Referring to fig. 1-7, the testing device for the BFRP restrained gangue concrete supporting structure comprises a testing machine body 11, wherein a testing bin 12 is arranged on one side of the testing machine body 11, and in the testing of the concrete supporting structure, tested data are collected through the testing machine body 11, and meanwhile, the function of controlling the starting and stopping of the testing is achieved.
The bottom end of the test bin 12 is fixedly connected with a driving assembly 2, the driving assembly 2 comprises a fixing plate 21, the upper surface of the fixing plate 21 is provided with a driving motor 22, the output end of the driving motor 22 is fixedly connected with a test table 23, the upper surface and the lower surface of the test table 23 are provided with limit grooves 24, in order to improve the test range of a concrete structure, the test table 23 is driven to rotate through the driving motor 22 when the test table 23 rotates, the concrete structure positioned on the test table 23 also rotates along with the rotation, and the position of the concrete is changed through the rotation;
when testing the concrete supporting structure, firstly, the concrete is pressed down by pressing down the pressure rod 13, so that the stability and the strength of the concrete structure are tested;
the upper surface of the fixed plate 21 is fixedly connected with the limiting component 3, the limiting component 3 comprises a limiting rod 31, the upper surface of the fixed plate 21 is fixedly connected with the limiting rod 31, the outer surface of the limiting rod 31 is fixedly connected with a limiting clamp 32, the top end of the limiting rod 31 is further provided with another group of limiting clamps 32, one group of limiting clamps 32 are used for limiting the position of the test bench 23, the other group of limiting clamps 32 are used for limiting the position of the cover plate 33, the cover plate 33 is in sliding connection with the limiting rod 31 through the limiting clamps 32, a through hole is formed in the cover plate 33, the cover plate 33 and the test bench 23 are matched and clamped and fixed to a concrete supporting structure, the position of the concrete supporting structure is limited, in order to guarantee the safety of a test stage, the cover plate 33 is pressed down on the upper surface of the concrete through rotating a fixing nut 34 after pressing, the upper surface and the lower surface of the concrete structure are limited after pressing, so that when the pressure rod 13 falls through the through hole of the cover plate 33, the concrete structure after pressing is clamped and stability of the clamped structure is also improved;
the limiting clamps 32 are arranged on two sides of the test bench 23, the inner walls of the limiting clamps 32 are connected with limiting columns 25, the limiting columns 25 are embedded into the limiting grooves 24, the top ends of the limiting rods 31 are provided with cover plates 33, the top ends of the limiting rods 31 are also sleeved with fixing nuts 34, the fixing nuts 34 are pressed on the upper surfaces of the cover plates 33, the middle ends of the limiting rods 31 are fixedly connected with connecting columns 35, and the tail ends of the connecting columns 35 are embedded into the test bin 12;
in addition, the driving motor 22 can drive the test bench 23 to rotate, in addition, the limiting clamp 32 is movably connected with the test bench 23, the cover plate 33 is movably connected with the test bench 23, the test bench 23 is driven to rotate by the driving motor 22, the concrete is driven to rotate on the surface of the test bench after rotating, the concrete is extruded once through the pressure rod 13 after rotating, and the concrete structure is extruded again through the pressure rod 13 after rotating, so that the strength detection in a larger range can be realized.
In order to reduce the limitation of the test, the application of forces in different directions is adopted to improve the comprehensiveness of the test, improve the precision of the test result and find out the problem from the comprehensive test.
The top fixedly connected with backup pad 5 of fixed plate 21, backup pad 5 are inner wall curved metallic structure, and backup pad 5 sets up in one side of testboard 23 and apron 33, and the design of backup pad 5 can play the effect of support when pressure bar 13 extrudees the side of concrete.
The upper surface of fixed plate 21 is provided with transform subassembly 4, transform subassembly 4 includes servo motor 44, the upper surface fixedly connected with servo motor 44 of fixed plate 21, drive gear 45 is installed to the both sides of servo motor 44, the top fixedly connected with intensity ring frame 41 of fixed plate 21, intensity ring frame 41 worker is provided with two sets of, and every group is the annular structure of size each other, be provided with on the inner wall of intensity ring frame 41 and strengthen drive ring 43, one side fixedly connected with drive ring gear 42 of strengthening drive ring 43, the fixed surface of strengthening drive ring 43 is connected with linking cover 47, linking cover 47's top fixedly connected with mounting bracket 46, linking cover 47 cup joints the surface at intensity ring frame 41, and at the surface sliding connection of intensity ring frame 41, drive gear 45 has rotated the rotation of drive ring gear 42, the top fixedly connected with pressure bar 13 of mounting bracket 46 has been driven simultaneously and has been rotated, pressure bar 13 carries out the pressure test to concrete support device through the through-hole of apron 33 upper end.
In the test, the position of the pressure rod 13 is changed to realize the test of the concrete supporting structure, wherein in order to reduce the interference of external factors to the test when the position of the pressure rod 13 is adjusted, a strength ring frame 41, a driving toothed ring 42, a reinforcing driving ring 43, a servo motor 44 and a driving gear 45 are arranged;
in order to make the overall stability better, the impact of the reaction force on the test can be overcome when the pressure rod 13 is extruded through the circular design of the strength ring frame 41, and the overall strength is increased and the stability is improved under the design of the reinforced driving ring 43 and the reinforced driving ring 43;
when the position of the pressure rod 13 is adjusted, firstly, a motor arranged in the servo motor 44 drives the driving gear 45 to rotate, when the driving gear 45 rotates, the driving gear ring 42 can be driven to rotate, and the driving gear ring 42 is connected with the reinforcing driving ring 43, so that the reinforcing driving ring 43 is driven to rotate, the reinforcing driving ring 43 directly drives the connecting sleeve 47 and the mounting frame 46, the pressure rod 13 is connected by the mounting frame 46, and the position of the pressure rod 13 is adjusted after the mounting frame 46 rotates.
The driving gear ring 42 is arranged in a circular shape, the outer wall of the driving gear ring 42 is provided with a latch meshed with the driving gear 45, the driving gear ring 42 is arranged on the outer side of the driving gear ring 42, the strength ring frame 41, the driving gear ring 42 and the reinforcing driving ring 43 are concentric circles, and the driving gear ring 42 and the reinforcing driving ring 43 rotate along the circle center.
When the pressure rod 13 rotates to the side surface of the concrete structure, namely, the rotation is stopped after 90 degrees, the position of the pressure rod 13 is limited under the engagement of the driving gear 45 and the driving toothed ring 42, then the concrete structure clamped between the test bench 23 and the cover plate 33 is extruded along with the continuous extension of the output end of the pressure rod 13, the extrusion acting force is also carried out from the side surface, in order to stabilize the concrete structure, the supporting function of the supporting plate 5 is provided, after one extrusion test is carried out, the test bench 23 is driven to rotate by the driving motor 22, the contact position of the concrete structure and the pressure rod 13 is regulated after the rotation, and then the extrusion is carried out through the pressure rod 13, so that the comprehensive test is realized, and the test result is improved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. BFRP retrains gangue concrete supporting construction testing arrangement, including test organism (11), its characterized in that: a test bin (12) is arranged on one side of the test machine body (11);
the bottom fixedly connected with drive assembly (2) of test storehouse (12), drive assembly (2) include fixed plate (21), the last surface mounting of fixed plate (21) has driving motor (22), the output fixedly connected with testboard (23) of driving motor (22), spacing groove (24) have all been seted up to the upper surface and the lower surface of testboard (23), the last table fixedly connected with spacing subassembly (3) of fixed plate (21), spacing subassembly (3) include gag lever post (31), the upper surface fixedly connected with gag lever post (31) of fixed plate (21), the surface fixedly connected with spacing clamp (32) of gag lever post (31), spacing clamp (32) set up in the both sides of testboard (23), the inner wall connection of spacing clamp (32) has spacing post (25), spacing post (25) are embedded in the inside of spacing groove (24), the top of gag lever post (31) is provided with apron (33), the top of gag lever post (31) has still cup jointed fixed connection post (34) in the pressfitting of fixed connection post (33), the tail end of the connecting column (35) is embedded in the test bin (12).
2. The BFRP restraint coal gangue concrete support structure testing apparatus of claim 1, wherein: the top of gag lever post (31) still is provided with another set of spacing clamp (32), and wherein a set of spacing clamp (32) are used for the restriction to testboard (23) position, and another set of spacing clamp (32) are used for the restriction to apron (33) position, apron (33) keep sliding connection through between spacing clamp (32) and gag lever post (31).
3. The BFRP confined gangue concrete support structure testing apparatus of claim 2, wherein: the through hole is formed in the cover plate (33), the cover plate (33) and the test bench (23) are matched to clamp and fix the concrete supporting structure, and the position of the concrete supporting structure is limited.
4. The BFRP restraint coal gangue concrete support structure testing apparatus of claim 1, wherein: the upper surface of fixed plate (21) is provided with conversion subassembly (4), conversion subassembly (4) include servo motor (44), the upper surface fixedly connected with servo motor (44) of fixed plate (21), driving gear (45) are installed to the both sides of servo motor (44), the top fixedly connected with intensity ring frame (41) of fixed plate (21).
5. The BFRP restraint coal gangue concrete support structure testing apparatus of claim 4, wherein: the utility model discloses a strength ring frame (41) worker is provided with two sets of, and every group is the annular structure of size each other, be provided with on the inner wall of strength ring frame (41) and strengthen transmission ring (43), one side fixedly connected with drive ring gear (42) of strengthening transmission ring (43), the fixed surface of strengthening transmission ring (43) is connected with linking cover (47), the top fixedly connected with mounting bracket (46) of linking cover (47).
6. The BFRP restraint coal gangue concrete support structure testing apparatus of claim 5, wherein: the connecting sleeve (47) is sleeved on the outer surface of the strength ring frame (41) and is in sliding connection with the outer surface of the strength ring frame (41), and the driving gear (45) rotates to drive the driving gear ring (42) to rotate, and meanwhile drives the reinforcing driving ring (43) to rotate.
7. The BFRP confined gangue concrete support structure testing apparatus of claim 6, wherein: the top of mounting bracket (46) fixedly connected with pressure pole (13), pressure pole (13) carry out the pressure test to concrete supporting device through the through-hole of apron (33) upper end.
8. The BFRP restraint coal gangue concrete support structure testing apparatus of claim 7, wherein: the driving gear ring (42) is arranged in a circular shape, the outer wall of the driving gear ring (42) is provided with a latch meshed with the driving gear (45), and the driving gear ring (42) is arranged on the outer side of the driving gear ring (42).
9. The BFRP restraint coal gangue concrete support structure testing apparatus of claim 8, wherein: the strength ring frame (41), the driving toothed ring (42) and the reinforcing driving ring (43) are concentric circles, and the driving toothed ring (42) and the reinforcing driving ring (43) rotate along the circle center.
10. The BFRP restraint coal gangue concrete support structure testing apparatus of claim 1, wherein: the top fixedly connected with backup pad (5) of fixed plate (21), backup pad (5) are inner wall curved metal structure, backup pad (5) set up in one side of testboard (23) and apron (33).
CN202311516688.4A 2023-11-15 2023-11-15 BFRP constraint gangue concrete support structure testing device Pending CN117554177A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311516688.4A CN117554177A (en) 2023-11-15 2023-11-15 BFRP constraint gangue concrete support structure testing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311516688.4A CN117554177A (en) 2023-11-15 2023-11-15 BFRP constraint gangue concrete support structure testing device

Publications (1)

Publication Number Publication Date
CN117554177A true CN117554177A (en) 2024-02-13

Family

ID=89819864

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311516688.4A Pending CN117554177A (en) 2023-11-15 2023-11-15 BFRP constraint gangue concrete support structure testing device

Country Status (1)

Country Link
CN (1) CN117554177A (en)

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